PROBLEM TO BE SOLVED: To provide a liquid supply system in which liquid does not leak to the outside in replacing a liquid storage container.;SOLUTION: Before replacing a beer storage barrel 21-1 with a new one, burst preventive measures of forming an empty discharge flow path ranging from the beer storage barrel 21-1 to a waste liquid receiver WP of a dispenser 11 are executed. In this case, a fluid stopper device 33-1 is set to a supply enabled state after setting a fluid stopper device 31-1 to a supply disabled state. Thus, the discharge flow path from beer storage barrel 21-1 to the waste liquid receiver WP is formed. In an initial stage in the supply enabled state of the fluid stopper device 33-1, bubbles ejected from the beer storage barrel 21-1 are discharged to a discharge route at a point when the beer storage barrel 21-1 becomes empty. When discharge is continued for a predetermined time, bubbles that exist in the discharge route can be discharged to the waste liquid receiver WP. This makes it possible to form an empty discharge route, and burst of a first connection tube 23-1 in the vicinity of the fluid stopper device 31-1 can be prevented.;COPYRIGHT: (C)2014,JPO&INPIT
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